Features 1、MULTIFUNCTIONAL BATTERY CAPACITY VOLTMETER INDICATOR: The right switch key of the battery tester can switch the voltmeter, battery percentage, off 2、LEFT SETTING KEY FUNCTIONS: Cycle voltmeter or battery percentage, turn on backlight, black, sleep mode, battery type selection, etc. 3、SAFE TO USE: Battery voltmeter is easy to connect. Reverse connection protection design, reverse connection will not burn 4、PORTABLE VOLTMETER: Battery capacity meter come with small size, light weight, waterproof surface, portable and durable 5、STABLE AND DURABLE: Battery capacity meter come with stable structure, excellent performance and long service life Specification Item Type: Battery Capacity Meter Material: Environmentally friendly ABS Model: TH01 Package List 1 x Battery Capacity Meter 1 x Cable